Zobrazeno 1 - 10
of 440
pro vyhledávání: '"Nez F."'
Autor:
Adrich, P., Blumer, P., Caratsch, G., Chung, M., Cladé, P., Comini, P., Crivelli, P., Dalkarov, O., Debu, P., Douillet, A., Drapier, D., Froelich, P., Garroum, N., Guellati-Khelifa, S., Guyomard, J., Hervieux, P-A., Hilico, L., Indelicato, P., Jonsell, S., Karr, J-P., Kim, B., Kim, S., Kim, E-S., Ko, Y. J., Kosinski, T., Kuroda, N., Latacz, B. M., Lee, B., Lee, H., Lee, J., Lim, E., Liszkay, L., Lunney, D., Manfredi, G., Mansoulié, B., Matusiak, M., Nesvizhevsky, V., Nez, F., Niang, S., Ohayon, B., Park, K., Paul, N., Pérez, P., Regenfus, C., Reynaud, S., Roumegou, C., Roussé, J-Y., Sacquin, Y., Sadowski, G., Sarkisyan, J., Sato, M., Schmidt-Kaler, F., Staszczak, M., Szymczyk, K., Tanaka, T. A., Tuchming, B., Vallage, B., Voronin, A., van der Werf, D. P., Won, D., Wronka, S., Yamazaki, Y., Yoo, K-H., Yzombard, P.
Publikováno v:
European Physical Journal C 83, 1004 (2023)
We report on the first production of an antihydrogen beam by charge exchange of 6.1 keV antiprotons with a cloud of positronium in the GBAR experiment at CERN. The antiproton beam was delivered by the AD/ELENA facility. The positronium target was pro
Externí odkaz:
http://arxiv.org/abs/2306.15801
Autor:
Nuber, J., Adamczak, A., Ahmed, M. Abdou, Affolter, L., Amaro, F. D., Amaro, P., Carvalho, P., Chang, Y. -H., Chen, T. -L., Chen, W. -L., Fernandes, L. M. P., Ferro, M., Goeldi, D., Graf, T., Guerra, M., Hänsch, T. W., Henriques, C. A. O., Hildebrandt, M., Indelicato, P., Kara, O., Kirch, K., Knecht, A., Kottmann, F., Liu, Y. -W., Machado, J., Marszalek, M., Mano, R. D. P., Monteiro, C. M. B., Nez, F., Ouf, A., Paul, N., Pohl, R., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Silva, P. A. O. C., Sinkunaite, L., Shy, J. -T., Schuhmann, K., Rajamohanan, S., Soter, A., Sustelo, L., Taqqu, D., Wang, L. -B., Wauters, F., Yzombard, P., Zeyen, M., Zhang, J., Antognini, A.
The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen ($\mu$p) with 1 ppm accuracy by means of pulsed laser spectroscopy. In the proposed experiment, the $\mu$p atom is excited by a laser p
Externí odkaz:
http://arxiv.org/abs/2211.08297
Autor:
Blumer, P., Charlton, M., Chung, M., Clade, P., Comini, P., Crivelli, P., Dalkarov, O., Debu, P., Dodd, L., Douillet, A., Guellati, S., Hervieux, P. -A, Hilico, L., Indelicato, P., Janka, G., Jonsell, S., Karr, J. -P., Kim, B. H., Kim, E. S., Kim, S. K., Ko, Y., Kosinski, T., Kuroda, N., Latacz, B. M., Lee, B., Lee, H., Lee, J., Leitee, A. M. M., Leveque, K., Lim, E., Liszkay, L., Lotrus, P., Lunney, D., Manfredi, G., Mansoulie, B., Matusiak, M., Mornacchi, G., Nesvizhevsky, V., Nez, F., Niang, S., Nishi, R., Ohayon, B., Park, K., Paul, N., Perez, P., Procureur, S., Radics, B., Regenfus, C., Reymond, J. -M., Reynaud, S., Rousse, J. -Y., Rousselle, O., Rubbia, A., Rzadkiewicl, J., Sacquin, Y., Schmidt-Kaler, F., Staszczak, M., Szymczyk, K., Tanaka, T., Tuchming, B., Vallage, B., Voronin, A., van der Werf, D. P., Wolf, S., Won, D., Wronka, S., Yamazaki, Y., Yoo, K. H., Yzombard, P., Baker, C. J.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A, Volume 1040, 2022, 167263
We present a description of the GBAR positron (e+) trapping apparatus, which consists of a three stage Buffer Gas Trap (BGT) followed by a High Field Penning Trap (HFT), and discuss its performance. The overall goal of the GBAR experiment is to measu
Externí odkaz:
http://arxiv.org/abs/2205.04530
Autor:
Antognini A., Schuhmann K., Amaro F. D., Amaro P., Abdou-Ahmed M., Biraben F., Chen T.-L., Covita D. S., Dax A. J., Diepold M., Fernandes L. M. P., Franke B., Galtier S., Gouvea A. L., Götzfried J., Graf T., Hänsch T. W., Hildebrandt M., Indelicato P., Julien L., Kirch K., Knecht A., Kottmann F., Krauth J. J., Liu Y.-W., Machado J., Monteiro C. M. B., Mulhauser F., Nez F., Santos J. P., dos Santos J. M. F., Szabo C. I., Taqqu D., Veloso J. F. C. A., Voss A., Weichelt B., Pohl R.
Publikováno v:
EPJ Web of Conferences, Vol 113, p 01006 (2016)
We review the status of the proton charge radius puzzle. Emphasis is given to the various experiments initiated to resolve the conflict between the muonic hydrogen results and the results from scattering and regular hydrogen spectroscopy.
Externí odkaz:
https://doaj.org/article/e7e88b91b57a4b1991447fad75f2d1ba
Autor:
Amaro, P., Adamczak, A., Ahmed, M. Abdou, Affolter, L., Amaro, F. D., Carvalho, P., Chen, T. -L., Fernandes, L. M. P., Ferro, M., Goeldi, D., Graf, T., Guerra, M., Hänsch, T. W., Henriques, C. A. O., Huang, Y. -C., Indelicato, P., Kara, O., Kirch, K., Knecht, A., Kottmann, F., Liu, Y. -W., Machado, J., Marszalek, M., Mano, R. D. P., Monteiro, C. M. B., Nez, F., Nuber, J., Ouf, A., Paul, N., Pohl, R., Rapisarda, E., Santos, J. M. F. dos, Santos, J. P., Silva, P. A. O. C., Sinkunaite, L., Shy, J. -T., Schuhmann, K., Rajamohanan, S., Soter, A., Sustelo, L., Taqqu, D., Wang, L. -B., Wauters, F., Yzombard, P., Zeyen, M., Antognini, A.
Publikováno v:
SciPost Phys. 13, 020 (2022)
The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen ($\mu$p) with 1 ppm accuracy by means of pulsed laser spectroscopy to determine the two-photon-exchange contribution with $2\times10^{-
Externí odkaz:
http://arxiv.org/abs/2112.00138
Autor:
Ahokas, J., Semakin, A., Järvinen, J., Hanski, O., Laptiyenko, A., Dvornichenko, V., Salonen, K., Burkley, Z., Crivelli, P., Golovizin, A., Nesvizhevsky, V., Nez, F., Yzombard, P., Widmann, E., Vasiliev, S.
We describe the design and performance of a large magnetic trap for storing and cooling of atomic hydrogen (H). The trap operates in the vacuum space of a dilution refrigerator at a temperature of 1.5 K. Aiming at a large volume of the trap we implem
Externí odkaz:
http://arxiv.org/abs/2108.09123
Autor:
Charlton, M., Choi, J. J., Chung, M., Clade, P., Comini, P., Crepin, P-P., Crivelli, P., Dalkarov, O., Debu, P., Dodd, L., Douillet, A., Guellati-Khelifa, S., Hervieux, P-A., Hilico, L., Husson, A., Indelicato, P., Janka, G., Jonsell, S., Karr, J-P., Kim, B. H., Kim, E-S., Kim, S. K., Ko, Y., Kosinski, T., Kuroda, N., Latacz, B., Lee, H., Lee, J., Leite, A. M. M., Leveque, K., Lim, E., Liszkay, L., Lotrus, P., Louvradoux, T., Lunney, D., Manfredi, G., Mansoulie, B., Matusiak, M., Mornacchi, G., Nesvizhevsky, V. V., Nez, F., Niang, S., Nishi, R., Nourbaksh, S., Park, K. H., Paul, N., Perez, P., Procureur, S., Radics, B., Regenfus, C., Rey, J-M., Reymond, J-M., Reynaud, S., Rousse, J-Y., Rousselle, O., Rubbia, A., Rzadkiewicz, J., Sacquin, Y., Schmidt-Kaler, F., Staszczak, M., Tuchming, B., Vallage, B., Voronin, A., Welker, A., van der Werf, D. P., Wolf, S., Won, D., Wronka, S., Yamazaki, Y., Yoo, K-H.
Publikováno v:
Nucl. Instrum. Methods Phys. Res. A 985, 164657 (2021)
For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses a low-energy electron linear accelerator (linac). The driver linac pro
Externí odkaz:
http://arxiv.org/abs/2006.05966
Autor:
Nesvizhevsky, V. V., Nez, F., Vasiliev, S. A., Widmann, E., Crivelli, P., Reynaud, S., Voronin, A. Yu.
Publikováno v:
Eur. Phys. J. C (2020) 80:520
Observation time is the key parameter for improving the precision of measurements of gravitational quantum states of particles levitating above a reflecting surface. We propose a new method of long confinement in such states of atoms, anti-atoms, neu
Externí odkaz:
http://arxiv.org/abs/2001.06332
Autor:
Zeyen, M., Antognini, A., Kirch, K., Knecht, A., Marszalek, M., Nez, F., Nuber, J., Pohl, R., Schulthess, I., Sinkunaite, L., Schuhmann, K.
We present a multi-pass amplifier which passively compensates for distortions of the spherical phase front occurring in the active medium. The design is based on the Fourier transform propagation which makes the output beam parameters insensitive to
Externí odkaz:
http://arxiv.org/abs/1901.03165
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